JTextPane-Extra character is adding to StyledDocument. How to overcome it ?

Question

Hi All,
In my application, when I tried to increase the font size of the styled text every time an extra character is adding and its font size is not increasing as expected. Please try to run the below application as mentioned steps below :
After running the application
Step 1: Click on "Button1" and observe console. You will find list of all characters.
Step 2: Click on "Button2" and observe console. Now you can see the RTF text's byte[] at console.
Step 3: Click on "Button3" and observe console. You will find list of all characters along with their updated font size. (One extra character will be show in character's list)
Try to do Step2 and Step3 repeatedly
each time one extra character will be added to list and the new character's font size not be reducing.
I have two problems here
1. When I copy RTF byte[] from one DefaultStyledDocument to another one extra character is adding the new document object. How to avoid this extra character from the new document ?
2. Why every time the last character's font size is not increasing ?
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextPane;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
import javax.swing.text.rtf.RTFEditorKit;
public class CopyStyledTextDocument extends JFrame
    RTFEditorKit rtfKit = new RTFEditorKit();
    DefaultStyledDocument orgDoc = null;
     static final JTextPane pane = new JTextPane();
     static final JButton getStyledCharecters = new JButton();
     static final JButton saveOrgDoc = new JButton();
     static final JButton changeFont = new JButton();
    CopyStyledTextDocument()
        getStyledCharecters.setText("Button1");
        getStyledCharecters.setSize(50, 50);
        getStyledCharecters.addActionListener(
                  new ActionListener()
                       public void actionPerformed(ActionEvent e)
                            DefaultStyledDocument doc = (DefaultStyledDocument)pane.getStyledDocument();
                            String newChar = "";
                            int length = doc.getLength();
                            for(int i=0;i<length;i++)
                                 try
                                      newChar = doc.getText(i, 1);
                                      System.out.println("------- charPos : "+i+" char : "+newChar);
                                 catch(Exception ex)
                                      System.out.println("Error : "+ex);                                      
                                      ex.printStackTrace();
        saveOrgDoc.setText("Button2");
        saveOrgDoc.setSize(50, 50);
        saveOrgDoc.addActionListener(new ActionListener()
                       public void actionPerformed(ActionEvent e)
                            CopyStyledTextDocument.this.orgDoc = CopyStyledTextDocument.this.copyStyledDocument((DefaultStyledDocument)pane.getStyledDocument());
        changeFont.setText("Button3");
        changeFont.setSize(50, 50);
        changeFont.addActionListener(
                  new ActionListener()
                       public void actionPerformed(ActionEvent e)
                            Style newStyle = new StyleContext().addStyle(null, null);
                            DefaultStyledDocument newDoc = CopyStyledTextDocument.this.orgDoc;
                            int totalChars = newDoc.getLength();
                            for(int i=0;i<totalChars;i++)
                                 String newChar = "";
                                 Element charElement = newDoc.getCharacterElement(i);
                                 AttributeSet charArributeSet = charElement.getAttributes();
                                 try
                                      newChar = newDoc.getText(i, 1);
                                 catch(Exception ex)
                                      System.out.println("Error : "+ex);
                                      ex.printStackTrace();
                                 int fontSize = ((Integer)charArributeSet.getAttribute(StyleConstants.FontSize)).intValue();
                                 fontSize += 10;
                                 StyleConstants.setFontSize(newStyle, fontSize);
                                 try {
                                      newDoc.replace(i, 1, newChar, newStyle);
                                      System.out.println("------- charPos : "+i+" char : "+newChar+" fontSize : "+fontSize);
                                 }catch(Exception ex) {
                                      System.out.println("Error : "+ex);
                                      ex.printStackTrace();
                                 pane.setStyledDocument(newDoc);
     public DefaultStyledDocument copyStyledDocument(DefaultStyledDocument inputDoc)
         DefaultStyledDocument newdocument = null;
          try
               ByteArrayOutputStream bOData = new ByteArrayOutputStream();
               rtfKit.write(bOData, inputDoc, 0, inputDoc.getLength());
               String styledText = new String(bOData.toByteArray());
               System.out.println("------- RTF byte[] : "+styledText);
               ByteArrayInputStream bIData = new ByteArrayInputStream(styledText.getBytes());
               newdocument  = new DefaultStyledDocument();
               rtfKit.read(bIData, newdocument, 0);
          }catch(BadLocationException ex)  
               System.out.println("Error : "+ex);
               ex.printStackTrace();
          catch(IOException ex)       
               System.out.println("Error : "+ex);
               ex.printStackTrace();
          return newdocument;
  public static void main(String args[]) throws BadLocationException
       CopyStyledTextDocument jf = new CopyStyledTextDocument();
       jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       Container cp = jf.getContentPane();
       Document doc = pane.getStyledDocument();
       SimpleAttributeSet set = new SimpleAttributeSet();
       StyleConstants.setFontSize(set, 12);
       doc.insertString(doc.getLength(), " SAMPLE \n", set);
       doc.insertString(doc.getLength(), " TEXT \n", set);
       doc.insertString(doc.getLength(), " OVER ", set);
       cp.add(getStyledCharecters, BorderLayout.WEST);
       cp.add(saveOrgDoc, BorderLayout.SOUTH);       
       cp.add(changeFont, BorderLayout.EAST);        
       cp.add(pane, BorderLayout.NORTH);
       jf.setSize(800, 700);
       jf.setVisible(true);
}Due to urgency I placed little bit of info. in below link
http://forums.sun.com/thread.jspa?threadID=5409367&tstart=45
But here I am placing a sample application which represents the problem clearly.
If you have any queries please feel free to ask.
Thanks for you help
Satya.

Answer 1

Your feed has two episodes, and they both appear when subscribing. So far the Store hasn't picked up the newer episode.
This episode has duplicated 'enclosure' tags - both containing the same media file URL: this shouldn't be a problem as iTunes should simply ignore the second one.
When you add a new episode to a feed it usually takes 1-2 days before the Store picks up the change, though it appear immediately for subscribers. If in fact you didn't have the second episode in the feed when it was first submitted this would probably be the reason.
It's just possible that something in the feed is upsetting the Store but not the iTunes application on subscribing (which doesn't involve the Store) - however apart from the duplicated enclosure tag there doesn't appear to be anything unusual. Your media filename for the second episode has a space in it, which isn't a good idea, but the feed is handling this correctly by substituting the code %20, so it's unlikely that this is throwing the Store. However it would be better to avoid spaces altogether - they aren't allowed in a URL (hence the need to substitute the code).
I should give it a couple of days and see if the episode appears.